Category Archives: Soil

Agronomy, AgTech, Conference, Innovation, Plant Health, Planting, Research, Soil

Harnessing the Power of Microbes

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This week we hear from Dr Johanna Steyaert, Trichoderma research scientist and molecular biologist and Max Purnell, Trichoderma practitioner and dairy farmer. Johanna and Max will talk about their work with Trichoderma a type of fungi that lives in symbiosis with plant roots, where they can increase nitrogen use efficiency and solubilise phosphate as well as protect against root diseases. 

Listen here>

 

“Spray-free” is an oft cited aspiration as the shift towards regenerative practices continues. An important part of such a strategy is the use of bioinoculants such as Trichoderma in place of traditional chemicals. However, it is not quite as simple as that. Beneficial microbes form part of a large interconnected web, a biological and chemical ‘superhighway’. Understanding those relationships is the foundation for understanding how to better optimise growth promotion and biocontrol.

Dr Johanna Steyaert is a senior scientist at Lincoln Agritech Ltd with 20 years’ experience working with Trichoderma bioinoculants used for disease control and growth promotion. Her research spans understanding the genetics of Trichoderma fungi to optimising production of biocontrol agents in collaboration with commercial partners. After completing her PhD, Johanna won a prestigious Marsden Fund grant from the New Zealand Royal Society. She led a highly original project studying the effect of the Earth’s electromagnetic field on fungal reproduction. Johanna has a strong interest in regenerative practices and the role Trichoderma play.

Max Purnell, was a member of the AGMARDT board for 10 years where his interest in soils and background in farming lead him to become interested in the work of Dr. Robert Hill who pioneered Trichoderma research in New Zealand. Max runs an 80 ha dairy farm in Thames, and takes a soils-first approach to farming. He has experimented with several strains of Trichoderma on the farm, and has supported research to collect Trichoderma fungi and observe their benefits to the farm system.

Thanks to our LandWISE Conference sponsors who continued their support by helping with the podcasts series after our May 2020 conference was Covid Cancelled.

Agronomy, AgTech, Fertiliser, Nutrients, Plant Health, Projects, Research, Soil, Vegetables

Future Proofing Vegetable Production: Milestone 9

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We continue to have solid engagement with our farming communities in Levin and Gisborne.  At this stage our project plan had us monitoring the effectiveness of a bioreactor to manage nitrogen leaving the field, but we have not been able to find a regular flow of nutrient rich water that we can treat. Further drain flow monitor through Levin has continued to show little nitrogen in the drains flowing past the cropping blocks so any nitrate losses are assumed to be via groundwater, possibly reappearing in the Arawahata Stream between the cropped areas and Lake Horowhenua.

We are working with growers to ensure that they are applying the correct rate of fertiliser in the right place so that they do not lose excess nutrients from the field.

As part of the suite of tools to help farmers, we have created LandWISE Nutrient Budget templates and updated the FertSpread web-calculator for broadcast spreader calibrations to include Fertplace for placement equipment such as planters and side-dressers.

The Nitrate Quick Test is a rapid measurement of available nitrate in the plants’ rootzone

The three main tools we are using in our work with growers are:

  • The LandWISE Nutrient Budget: used in the crop planning stage to ensure planned fertiliser practice follows industry good practice.
  • The Nitrate Quick Test soil test: used as an active management tool during the crop to check the fertiliser plan and to validate additional fertiliser applications where the grower expects that extra fertiliser is required on top of what was originally planned.
  • The calibration tools, FertSpread and FertPlace: used to ensure that the fertiliser application equipment is evenly applying the fertiliser at the target rate where it is required.

In the coming season we have started two large, replicated trials in Gisborne focusing on nitrogen application rates to tomato and sweetcorn crops. Late winter soil testing to 90cm has shown a large range of soil nitrate levels (60-257 kg N/ha) in paddocks across Gisborne. Planned nitrogen fertiliser applications across these blocks were the grower standard rate.

Further work we are completing is turning the LandWISE Nitrogen Budget template into an online app for growers to use. The aim is a mobile-friendly tool that growers can use in the field. By making the information available on the technology growers always have with them, they will be able to simply validate their planned fertiliser plan against industry good practice and make more informed fertiliser decisions.

For queries, contact us here

Many thanks to our project funders, and the growers and industry folk who are putting so much time and effort into being the best they can be.

 

Agronomy, events, Precision Agriculture, Soil, Tillage

Podcast – 20 Years of Strip-Till

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Hugh Ritchie is a founding farmer and life member of LandWISE. Hugh farms on Drumpeel Station a 2000ha mixed arable, process vegetable and lamb fattening operation.

Hugh joins us to talk about his experiences with Strip-Tillage. A type of minimum tillage system which he brought over from the U.S in 2000, as part of LandWISE’s first project addressing wind erosion of soil in Central Hawke’s Bay.

Agronomy, events, Nutrients, Research, Soil

Podcast – Cover Cropping: The Ts & Cs

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Allister Holmes is the Technology Research & Extension Manager for FAR and has many years’ experience trialling new farming practices and cultivars and sharing that knowledge with arable farmers all over the country.

Allister joins the podcast to discuss cover cropping, and follows on from the general principles we heard from Charles Merfield earlier in the series.

Allister emphasizes that mixed species cover crops can reduce the risk of poor establishment and growth if environmental conditions are unpredictable. He also discusses the types of machinery making it easier and more cost effective to sow cover crops – either during the cash crop’s growth or immediately after harvest.

Find resources about cover cropping on FAR’s website.

Agronomy, Conference, Soil, Tillage

Podcast – Strip Tillage for Vegetable Seed Crops

Listen to the Podcast Episode here >

Simon Lochhead joins the podcast to discuss adopting strip tillage in his wide-row vegetable seed cropping. An arable farmer from mid-Canterbury, Simon has been introducing strip tillage to his farm system over the last 3 years. He could recognise the opportunity to preserve the benefits of soil structure gained through a pasture phase and reduce wind erosion of soil, by transitioning to strip-tillage for his wide row vegetable seed crops. Listen to the full discussion above.

 

Agronomy, AgTech, Automation, Conference, Controlled Traffic Systems, Data Analytics, Drainage, events, Fertiliser, Innovation, Irrigation, LandWISE 2015, LandWISE People, Membership, MicroFarm, New Crops, Nutrients, Orchard, Orcharding, Plant Health, Planting, Precision Agriculture, Projects, Research, Robotics, Sensing, Soil, Tillage, Uncategorized, Vegetables, viticulture, Water, Weeds

Memberships Open for 2020-2021

Calling all followers and friends of LandWISE, we invite you to become a financial member this year.

Your support is vital for LandWISE to continue doing what we do. We rely on farmer support to ensure the backing of new projects, discover new areas for research or technology adoption, and to fund field days, workshops and the development of practical resources. 

LandWISE Membership is a great way to support the mission of sustainable production in New Zealand, and as a member you’ll benefit from:

  • Results from on-farm trials
  • Projects focussed on real farmer and grower problems
  • Regional field days and workshops on a range of topics from conserving soil to nutrient management and novel fertiliser technology
  • A discounted registration at the 2021 LandWISE Conference
  • Subscription to our annual LandWISE News publication

Membership is open to all who are interested in primary production and share our values. We hope you’ll consider becoming a member, or forward this on to a non-member if you already are!

Sign up here >

Agronomy, Conference, events, Fertiliser, Nutrients, Soil, Uncategorized, Vegetables

Reducing Nitrogen Losses from Intensive Vegetable Production – Panel Discussion

LandWISE: Promoting Sustainable Crop Production
LandWISE: Promoting Sustainable Crop Production
Reducing Nitrogen Losses from Intensive Vegetable Production - Panel Discussion
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Thank you to those who joined us for the Live Panel Discussion with June’s podcast guests. We were thrilled to get so many participants in our first live webcast, and appreciated the rich conversation as a result of the varied viewpoints from panel presenters and listeners.

For those of you who weren’t able to make it to the Live Panel on Reducing Nitrogen Losses from Intensive Vegetable Production we recorded the discussion and you can listen to it above.

The Panel Discussion was presented on June 30th, after our presenters each featured on the LandWISE Podcast. If you’re interested to hear more from Jay Clarke, Luke Posthuma, Georgia O’Brien or Charles (Merf) Merfield, you can listen to their podcast episodes here:

All Podcast Episodes here >

Subscribe to our newsletter to receive the latest news from LandWISE including future panel webcasts, and podcast episodes.

Agronomy, Conference, Fertiliser, Innovation, Nutrients, Orchard, Plant Health, Projects, Research, Soil, Vegetables, Weeds

Introducing our Podcast

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Unable to gather for our popular annual conference in May, but not wanting to you to miss hearing new ideas about  sustainable production, we joined the virtual conference crowd.

We are pleased to present “LandWISE: Promoting Sustainable Crop Production” a podcast that will bring the insights of lead researchers, technologists, and farmers to listeners from all over the Ag and Hort industry. Each month has a theme with guests joining on the last Friday of the month as a discussion panel.

This month we’re presenting “Reducing Nitrogen Losses from Intensive Vegetable Cropping” starting with our first guest Jay Clarke, Director of Woodhaven Gardens.

Woodhaven was named the Regional Supreme Winner at the Horizons Ballance Farm Environment Awards in April 2020. We are looking forward to hearing how Jay and the Clarke family have transformed Woodhaven’s growing practices to achieve this outstanding recognition.

JUNE: Reducing Nitrogen Losses from Intensive Vegetable Cropping

 
Growers Making Changes (Jay Clarke – Woodhaven Gardens) Friday 5th June
On-Farm Trials with Growers (Luke Posthuma, LandWISE) Friday 5th June
A Grower-Friendly Nutrient Budget Template (Georgia O’Brien– LandWISE) Friday 12th June
Cover and Catch Cropping (Charles Merfield – BHU Future Farming Centre) Friday 19th June
LIVE PANEL DISCUSSION – send in your questions to info@landwise.org.nz Friday 26th June 1:00 pm
Listen to Podcasts online here >
Listen on Spotify >

On the last Friday of the month – look out for our live Panel Discussion where we bring together all of the guests from the show and ask them your questions.

Email us your questions to info@landwise.org.nz

Made possible by our conference sponsors:

Agronomy, AgTech, Conference, Drainage, events, Innovation, LandWISE People, Precision Agriculture, Projects, Research, Robotics, Soil, Tillage

Nutrient Budgeting made easy…

We’re pleased to announce the release of our Nutrient Budgeting Templates.  Designed to support vegetable growers to budget fertiliser use according to good management practice guidelines the A4 pdf templates rely on nutrient recommendations from Reid & Morton (2019). Crop yield predictions and soil fertility testing are used to determine the optimum rate of Nitrogen and Phosphorus to apply, based on the best trial data NZ has for 12 different vegetable crops.

The LandWISE Nutrient Budget Templates bring together this resource along with FAR’s Nitrate Quick Test Mass Balance tool which allows growers to enter soil nitrate levels using the Nitrate Quick Test. This test can provide growers with soil nitrate levels in less than an hour for about $1. FAR’s tool reliably converts nitrate concentrations (ppm) into kg N/ha.

Nutrient budgets are becoming a necessary process to document the movement of nutrients on and off-farm, and justify fertiliser applications. Nutrient budgets can be used to develop a fertiliser plan, where each paddock or management unit has a clear strategy to maintain, build or mine soil nutrient levels.

View or download the templates below:

Phosphorus Budget Template 02-20

Nitrogen Budget Template 02-20

The Nutrient Budget Templates have been developed as part of Future Proofing Vegetable Production, a three-year project funded by MPI’s Sustainable Farming Fund, Ballance, Horizons, Gisborne District Council, and Potatoes NZ.

We are keen to hear from those using the templates so please get in touch if you have any questions or feedback.

Agronomy, AgTech, events, Fertiliser, Nutrients, Projects, Research, Soil, Vegetables

Nitrate Management Demonstrations – Gisborne 4 Feb

We had a good turn out at our Nitrate Quick Test and Alternative Application Technology Demonstrations in Gisborne on  4th February. Many thanks to Calvin Gedye and family for hosting the event.

Intended for Growers, Agronomists, and Fertiliser Reps, it was a chance to show and see some new technologies and talk about trials we are running in Gisborne and Levin. Attendees saw  demonstrations of:

TeeJet fertiliser nozzle on left, Stream Bar on right

Managing plant available nitrogen in soil is critical to ensuring crop yield and quality targets are met, and the risk of losses is minimised. However Nitrate-N, the main source of N available to plants is highly variable spatially and over time. Regular soil testing can help growers make better decisions about fertiliser use. Quick-N tests are affordable, easy to use and can give results in less than half an hour.

Why liquid fertilisers? In order to sidedress N more frequently and match crop demand closely, application needs to be efficient, even and easy. Liquid fertiliser application technology is progressing, and many attachments are now available to fit spray booms, in a variety of different spread patterns. Specialised nozzles do not mist, but apply large droplets that run off leaves and minimise risk of burning.

The dropper systems apply liquid direct to the soil alongside the plants, where root activity is greatest.

Dropper systems apply liquid fertiliser direct to the soil. We are trying various types for different applications such as potatoes or sweetcorn

This workshop was presented as part of our SFF project Future Proofing Vegetable Production.